In a series L-C-R, A.C. circuit, `V_1, V_2` and `V_3` are the voltmeters connected to L, C and R respectively and ammeter A also connected as shown in figure. Reading of `V_3` and A will be ……

Options

A. 400 V, 4 A
B. 220 V , 4 A
C. 220 V , 2.2 A
D. 400 V , 2.2 A

Answer

C

Explanation

`V^2=V_R^2+(V_L-V_C)^2`
but `V_L=V_C` =400 V
`V^2=V_R^2`
`therefore V=V_R`
`therefore V_R`= 220 V and
`I=V/R=220/100`
`therefore` I=2.2 A